专线

1.privateline  2.privatewire  3.dedicatedline  4.dedicatedcircuit  

专的英语翻译：

expert; focus on sth.

线的英语翻译：

clue; line; string; stringy; thread; tie; verge; wire
【医】 line; line Of occlusion; linea; lineae; lineae poplitea; mito-; nemato-
soleal line; strand; thread
【经】 line